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getting data from a pointcloud2 coming from Kinect

asked 2011-06-22 11:15:38 -0500

surfexceltide gravatar image

updated 2011-06-22 13:29:26 -0500

I am working on getting depth data from Kinect. as i understand, the point cloud topic from Kinect (/camera/depth/points2) directly provides depth data in meters in the form of a pointcloud2 (please correct me if I am wrong!)

however, after browsing through pointcloud2 documentation, I did not find any method to, say, access the value of a specific point in the point cloud. then I read somewhere that pointcloud2 is abstracted in such a way that data cannot be accessed directly from it. (is that true?)

could anyone help me out with getting data from the pointcloud2 topic that I am subscribing to? thanks!

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Try to search through the history of questions. This answer was already asked a few times.
KoenBuys gravatar image KoenBuys  ( 2011-06-22 22:50:58 -0500 )edit

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answered 2011-06-22 11:18:33 -0500

fergs gravatar image

You probably will want to use the Point Cloud Library ( to access and manipulate cloud data. There are several tutorials available.

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Asked: 2011-06-22 11:15:38 -0500

Seen: 1,707 times

Last updated: Jun 22 '11